Source : Webster's Revised Unabridged Dictionary (1913)

Cellular \Cel"lu*lar\, a. [L. cellula a little cell: cf. F.
   cellulaire. See {Cellule}.]
   Consisting of, or containing, cells; of or pertaining to a
   cell or cells.

   {Cellular plants}, {Cellular cryptogams} (Bot.), those
      flowerless plants which have no ducts or fiber in their
      tissue, as mosses, fungi, lichens, and alg[ae].

   {Cellular theory}, or {Cell theory} (Biol.), a theory,
      according to which the essential element of every tissue,
      either vegetable or animal, is a cell; the whole series of
      cells having been formed from the development of the germ
      cell and by differentiation converted into tissues and
      organs which, both in plants ans animals, are to be
      considered as a mass of minute cells communicating with
      each other.

   {Cellular tissue}.
   (a) (Anat.) See {conjunctive tissue} under {Conjunctive}.
   (b) (Bot.) Tissue composed entirely of parenchyma, and having
       no woody fiber or ducts.